RIO DE JANEIRO, Aug. 4 (Xinhua) -- Five Brazilian athletes warming up in Berlin for the coming athletics worlds would return home for failing doping tests, the Brazilian Confederation of Athletics announced on Tuesday.

All the five - Bruno Lins Tenorio de Barros (200m and 4x100m), Jorge Celio da Rocha Sena (200m and 4x100m), Josiane da Silva Tito(4x400m), Luciana Franca (400m hurdles) and Lucimara Silvestre (Heptathlon) - tested positive for the use of erythropoietin (EPO),or Recombinant EPO isoforms.

The new cases made the number of the Brazilian athletes in Berlin fall from 45 to 39. Pole vaulter Lucimar Teodoro also tested positive at the end of July.

In 2009 alone, the Brazilian Confederation of Athletics has administered 292 in-competition and 61 out-of-competition tests in an attempt to combat performance enhancing drugs.

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